Reworked unit tests for machine and renamed test_programs directory

test/riscv_instructions/boolean_logic/if.c

@@ -0,0 +1,10 @@
+int main() {
+    int x = 1;
+    if (x == 1 && x > 0) {
+        x = 2;
+    } else if (x || x == 0 ) {
+        x = 3;
+    } else {
+        x = 0;
+    }
+}